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    Question

    In the remote control of Television Receivers, what type

    of electromagnetic radiation is employed?
    A Visible Correct Answer Incorrect Answer
    B Ultra Violet Correct Answer Incorrect Answer
    C Infrared Correct Answer Incorrect Answer
    D None of them Correct Answer Incorrect Answer

    Solution

    TV remote controls use infrared (IR) radiation to send signals. The remote contains an LED light that flashes quickly to send messages, which the TV receives via its built-in infrared receiver. This is why infrared radiation is used for TV remotes.

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